GRID2VIEW_LU(nged)

convert grid xy to view coordinates (local units)

📅 published 7.44.0, from nixpkgs unstable

✨ GRID2VIEW_LU ✨

okay bestie, welcome to the grid2view_lu page from the BRL-CAD User Commands manual (nged girlies rise 💅). This one's short and sweet and it ATE, no cap.

🌸 NAME 🌸

grid2view_lu — convert grid xy to view coordinates (local units). literally that's the whole job. iconic behavior honestly 🎀

🦋 SYNOPSIS 🦋

grid2view_lu u v

two args, that's it, she's low maintenance 💖

💜 DESCRIPTION 💜

so the grid2view_lu command takes a 2D grid offset (in local units, keep that in mind) and turns it into 3D view-space coordinates — also in local units, we stay consistent in this house ✨.

The two arguments u and v are the horizontal and vertical pixel-like grid offsets from the projected model origin. pixel-like!! not actual pixels, don't come for me 🙈. And the Z component? treated as 0. she's flat, she's on the floor, that's her vibe.

Here's the tea on how it works 🍓: the command projects the model origin into view space, scales it by the current view scale and the unit conversion factors, then adds the grid offset to produce a 3D view-space vector. The result comes back as a space-separated 3-element vector. three numbers, space separated, done 👑

The inverse operation is view2grid_lu — that's the one that goes the other way, iykyk 🧚

🌈 EXAMPLES 🌈

⭐ Example 1. Convert a grid offset to view coordinates

mged> grid2view_lu 50 25

Returns the 3D view-space coordinates corresponding to a 2D grid offset of (50, 25) local units from the projected model origin. so you feed her 50 and 25, she hands you back a whole 3D vector. main character energy fr fr 🔥

👑 AUTHOR 👑

BRL-CAD Team — love them, they built all of this 🫶

💀 BUG REPORTS 💀

found a bug? a problem? something acting sus? 😭 Reports of bugs or problems should be submitted via electronic mail to devs@brlcad.org. slide into their inbox, they'll fix it, slay 💌

anyway that's the whole page bestie, go convert some grid offsets, you're gonna do amazing 🌸💖✨

mwah 💋 — with love, the BRL-CAD crew, straight out of the BRL-CAD User Commands manual, page GRID2VIEW_LU(nged), periodt 🎀

📦 where this page comes from